package cn.HRMS.dao;

import java.util.List;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.LockMode;
import org.hibernate.Query;
import org.hibernate.criterion.Example;

import cn.HRMS.modle.LeaveRecord;

/**
 * A data access object (DAO) providing persistence and search support for
 * LeaveRecord entities. Transaction control of the save(), update() and
 * delete() operations can directly support Spring container-managed
 * transactions or they can be augmented to handle user-managed Spring
 * transactions. Each of these methods provides additional information for how
 * to configure it for the desired type of transaction control.
 * 
 * @see cn.HRMS.modle.LeaveRecord
 * @author MyEclipse Persistence Tools
 */
public class LeaveRecordDAO extends BaseHibernateDAO {
	private static final Log log = LogFactory.getLog(LeaveRecordDAO.class);
	// property constants
	public static final String LR_STYLE = "lrStyle";
	public static final String DURATION = "duration";
	public static final String APPROVER = "approver";
	public static final String PROPOSER = "proposer";

	public void save(LeaveRecord transientInstance) {
		log.debug("saving LeaveRecord instance");
		try {
			getSession().save(transientInstance);
			log.debug("save successful");
		} catch (RuntimeException re) {
			log.error("save failed", re);
			throw re;
		}
	}

	public void delete(LeaveRecord persistentInstance) {
		log.debug("deleting LeaveRecord instance");
		try {
			getSession().delete(persistentInstance);
			log.debug("delete successful");
		} catch (RuntimeException re) {
			log.error("delete failed", re);
			throw re;
		}
	}

	public LeaveRecord findById(java.lang.Long id) {
		log.debug("getting LeaveRecord instance with id: " + id);
		try {
			LeaveRecord instance = (LeaveRecord) getSession().get(
					"cn.HRMS.modle.LeaveRecord", id);
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		}
	}

	public List findByExample(LeaveRecord instance) {
		log.debug("finding LeaveRecord instance by example");
		try {
			List results = getSession()
					.createCriteria("cn.HRMS.modle.LeaveRecord")
					.add(Example.create(instance)).list();
			log.debug("find by example successful, result size: "
					+ results.size());
			return results;
		} catch (RuntimeException re) {
			log.error("find by example failed", re);
			throw re;
		}
	}

	public List findByProperty(String propertyName, Object value) {
		log.debug("finding LeaveRecord instance with property: " + propertyName
				+ ", value: " + value);
		try {
			String queryString = "from LeaveRecord as model where model."
					+ propertyName + "= ?";
			Query queryObject = getSession().createQuery(queryString);
			queryObject.setParameter(0, value);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}

	public List findByLrStyle(Object lrStyle) {
		return findByProperty(LR_STYLE, lrStyle);
	}

	public List findByDuration(Object duration) {
		return findByProperty(DURATION, duration);
	}

	public List findByApprover(Object approver) {
		return findByProperty(APPROVER, approver);
	}

	public List findByProposer(Object proposer) {
		return findByProperty(PROPOSER, proposer);
	}

	public List findAll() {
		log.debug("finding all LeaveRecord instances");
		try {
			String queryString = "from LeaveRecord";
			Query queryObject = getSession().createQuery(queryString);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}

	public LeaveRecord merge(LeaveRecord detachedInstance) {
		log.debug("merging LeaveRecord instance");
		try {
			LeaveRecord result = (LeaveRecord) getSession().merge(
					detachedInstance);
			log.debug("merge successful");
			return result;
		} catch (RuntimeException re) {
			log.error("merge failed", re);
			throw re;
		}
	}

	public void attachDirty(LeaveRecord instance) {
		log.debug("attaching dirty LeaveRecord instance");
		try {
			getSession().saveOrUpdate(instance);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public void attachClean(LeaveRecord instance) {
		log.debug("attaching clean LeaveRecord instance");
		try {
			getSession().lock(instance, LockMode.NONE);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}
}